Learning Goals of Lesson 11By the end of this lesson, I﻿ can:-break a composite 2-D figure down into basic 2-D shapes-identify given values of a composite 2-D figure-find missing side lengths of a composite 2-D figure-find the perimeter of a composite 2-D figure-find the area of a composite 2-D figure (add/subtract areas)

Video 1: What are Composite 2D Shapes/Figures?

Video 2: Area of a Composite or Compound 2D Shape?Note: This video has two calculation errors. Focus on the strategy not steps.Error 1: Area of the pink semi-circle should be ≈1.57 in², not 1.67 in²!Error 2: Area of the white circle shouldbe ≈254.47 cm², not half the circle!

Video 3: Find Area of a Composite Shape by Adding

Video 4: Find Area of a Composite Shape by AddingUse π = 3.14 only when instructed in a question; otherwise use the π key.

Video 5: Find Area of a Composite Shape by SubtractingUse π = 3.14 only when instructed in a question; otherwise use the π key.

Video 6: Area of Composite Shapes - Step-by-StepFind the area of a composite shape by either adding or subtracting individual area of the shapes that form the composite shape.